Users listed in a group (in admin console) are not sorted alphabetically with Hibernate-based user management

This makes it almost impossible to manage groups of more than 20 users. See screenshot.

Usually I browse groups like atlassian-staff (200) for the users I am looking for, since often the user-names are not exactly the same as in the staff directory. Now with the alphabetical ordering gone, it becomes very difficult to locate users, and I am sure our customers will complain a lot.